(1) Should the mandate of a Senator cease to exist during the Senator's electoral term for any reason, the President of the Republic shall call by-elections to fill such a vacancy. The by-elections shall be held in the electoral division the constituency mandate of which the Senator first elected was conferred with. The President shall determine the day of the by-election so that it shall be held no later than ninety days following the day on which the mandate of the Senator ceased to exist.
(2) By-elections shall be governed by the provisions stipulated in this Act, and wherein periods of time defined by Article 13, Paragraphs 2 and 3, Article 14, Paragraph 1, Article 60, Paragraphs 1 and 2, and Article 61, Paragraph 3 may be abridged by no more than one third. Periods of time defined by Article 62, Paragraph 1, Article 63, Paragraphs 1 and 2, and Article 64, Paragraph 1 may be abridged by no more than twenty days.
(3) No by-elections shall be held to fill a vacancy during the last year receding the end of the electoral term of the Senator whose mandate ceased to exist.
(4) By-elections shall choose a Senator who shall fill the vacancy which occurred after the mandate of the incumbent has ceased to exist, and who shall be in office until the end of the electoral term of the Senator first elected.
